Description:
Converted Leen's FH sound to 1.37.
I also used galimim's Volvo Drivetrain revision mod for engine defs and transmission so you'll have more gearbox to choose from.
It works on SCS's FH 2009 and FH 2012, might work with pendragon's, didn't try.

Credits:
Leen, galimim, aLmono